<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>BOM对象</title>
</head>
<body>
    <!-- 浏览器对象模型 BOM-->
     <!-- 
        window对象
            alert()
            confirm()
            prompt()

            setInterval()
            setTimeout()
        location
            href
            hash
            url
            ...
            reload()
        screen
        history
            go()
     -->
</body>
</html>